Apparatus for injecting steam into cupolas.



No. 646,448. Patented Apr; s, 1900.-

.G. L. MORTON. APPARATUS FOR INJECTING .STE AM INTO CUPOLAS. (Application filed Juii 23, 1899.) No Model.) 2 Sheets-Shaat I,

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No. 646,448. I Patnted Apr, 3, I900. I a. L. MDRTON. APPARATUS FOR INJECTING STEAM INTO GUP OLAS.

(Application filed June 23, 1899.) I (No Mod el.-) 2 Sheets-Sheet 2.

Wz'tlzes 3 es InvezalErE Unrrnn STATES PATENT OFFICE,

GEORGE LOUIS MORTON, OF LONDON, ENGLAND, ASSIGNOR TO THE DOHERTY IRON OASTINGS PROCESS, LIMITED, OF SAME PLACE.

APPARATUS FOR INJECTING STEAM INTO CUPOLAS.

SPECIFICATION forming part of Letters Patent No. 646,448, dated April 3, 1900. Application filed June 23, 1899. Serial No. 721,635. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, GEORGE LOUIS MOR- TON, managing engineer to The Doherty Iron Oastings Process, Limited, a subject of the Queen of Great Britain, residing at 16 St. Helens Place, London, England, have invented certain new and usefulImprovements in Apparatus for Injecting Steam into Oupolas in the Process of Melting Iron, (for which I have made application for Letters Patent in Great Britain, No. 2,933, dated February 9, 1899,) of which the followingis a specification.

In United States Letters Patent No. 575, 518, dated January 19, 1897, the means shown for introducing steam through the twyers into a cupola consist of a single steam-pipe in the twyer producing a single steam-jet centrally, or thereabont, in each twyer.

Now the present invention consists of a novel means for introducing steam through the twyers into the cupola, which will be hereinafter described, and finally pointed out in the claims.

Referring to the-accompanying drawings, Figure 1 is a sectional plan of a cupola'having four twyers therein, each fittedwith a ring-nozzle according to the present invention. Fig. 2 is a vertical section on line 2 2, Fig. 1i. c taken right through the twyers.

A is the Wall of the cupola, and B the twyers formed therein.

0 is a steam-pipe from boiler, (and superheater, where the latter is employed,) leading to each of the four ring-nozzles D, for instance, by branch pipes C, as shown, these branch pipes 0 each being provided with a cook or valve O respectively, to enablea supply of steam through each such branch pipe 0 individually to be regulated independently of the others and each such branch pipe leading through the air-blast passage E in any suitable manner and secured to and passing through the wall of said chamber E in any suitable mannerfor instance, by means of the nuts 0 c and a running coupling 0 -150 permit said connection to be made in a steam-tight manner.

The ring I) is provided with a series of holes or openings'D all around same (advantageously drilled on the inside of said ring) in a direction either radially inward, so that the steam-jets issuing therefrom converge and meet one another at the center or within the plane of said ring, or said holes may be drilled orformed in othersuitable direction leading thereto, may likewise be embedded or partly embedded in the twyer lining or Wall of the cupola, as shown in Fig. 2, this arrangement having the advantage that neither this part of the steam-pipe nor the ring-nozzle will be liable to be damaged by the poker or other device passed through the twyer into the cupola; but it will be obvious that I do not confine myself to thus embedding or partly embedding the ring-nozzle D in the wall orlining of the twyer, as same may be mounted in any suitable -manner in the twyer, so that a clear opening is thus always left through the twyer for the poker or other device to be passed therethrough when desired. 7 V

V The air-blast is introduced through the twyer in the usual or any suitable manner-- for instance, through the air-blast chamber E, which is provided with doors E to obtain access, thereto opposite the twyers and forming observation-holes in the usual mannerand such air-blast carries in with it the steam issuing in a series of jets, (in the form of a ring or rings,) as aforesaid, owing to said converging ring or rings of steam-jets being interposed in the path of said air-blast on .its way through the twyers to the interior of the cupola.

The steam pipe or nozzle D at the point where the series of jets issue therefrom, as aforesaid, may be other than in the exact form of a circle, as shown in the drawings. For instance, if the form of the twyerbe oval, triangular, square, or rectangular the perforated steam-pipe D would or could be made to follow the shape of said twyer. Furthermore, the ring or series of steam-jets may not be continuous all around the opening through loo 7 the twyers-for instance, the series of steamjets may issue on two opposite sides only or for a part (or parts) of the way around instead of all around the twyer.

By this invention important advantages are obtained in carrying out the Doherty process for melting iron according to the above-named patent, the steam being introduced in a finely-divided state and difiused over a larger area of the incandescent mass than with a single jet of steam in each twyer and enabling a larger amount of steam to be decomposed.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a device of the character described, the combination-with a cupola, and twyers in said cupola; of annular steam-pipes fitted around the interior of said twyers; said pipes having perforations therein, substantially as described.

2. In a device of the character described, the combination with a cupola, and twyers in said cupola; of annular steam-passages located around the interior of said twyers; said passages having perforations communicating therewith so located that jets of steam from said passages will converge to the centers of the twyers, substantially as described.

3(111 avdevice of the character described, the combination with a cupola, and twyers in the said cupola, of steam-pipes fitted around the interior of the said twyers, and partly embedded in the wall or lining of the twyers, the said steam-pipes having perforations for the escape of steam; substantially as described.

4. In a device of the character described, the combination with a cupola, and twyers in the said cupola, of steam-pipes fitted around the interior of the said twyers, and partly embedded in the wall or lining of the twyers,'the said steam-pipes having perforations for the escape of steam, the said perforations being arranged to produce a series of jets of steam which will converge in the path of the airblast; substantially as described.

GEORGE LO UIS MORTON.

Witnesses:

GEO. P. SmPsoN, R. MAoRIn. 

